400 V electrolytic capacitor and production technology thereof

A technology of electrolytic capacitors and electrolytic paper, which is applied in the direction of electrolytic capacitors, liquid electrolytic capacitors, capacitors, etc., can solve the problems of short load life, etc., and achieve the effects of prolonging life, increasing overall volume, and improving temperature resistance
CN103680980AActive Publication Date: 2014-03-26FOSHAN LIMING ELECTRONICS GAOMING
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
FOSHAN LIMING ELECTRONICS GAOMING
Publication Date
2014-03-26

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Abstract

The invention discloses a 400 V electrolytic capacitor and a production technology thereof. The 400 V electrolytic capacitor comprises a shell, a core, a sealing plug, a negative wire and a positive wire, wherein the core comprises a cathode foil and an anode foil; the core further comprises insulating electrolytic paper; electrolyte is added to the insulating electrolytic paper; the electrolyte is composed of ethylene glycol accounting for 40%-50%, diethylene glycol accounting for 10%-20%, triethylene glycol accounting for 10%-20%, glycerol accounting for 10%-20%, gamma-hydroxybutyrate lactone accounting for 10%-20%, sebacic acid accounting for 1%-10%, ammonium sebacate accounting for 1%-10%, o-nitroanisole accounting for 0.1%-0.9%, p-nitrobenzyl alcohol accounting for 0.1%-0.9%, benzene accounting for 0.1%-1%, polyvinyl alcohol accounting for 0.1%-1% and citric acid accounting for 0%-0.5%. The electrolytic capacitor has good temperature tolerance and long service life, and the load life reaches to 10000-15000 hours at 105 DEG C.
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Description

technical field

[0001] The invention relates to an electrolytic capacitor, in particular to a 400V electrolytic capacitor and a production process thereof. Background technique

[0002] The volume (size) of the electrolytic capacitor is an important factor restricting the performance of the electrolytic capacitor. How to increase the size of the electrolytic capacitor to improve the temperature resistance of the electrolytic capacitor and increase the life of the electrolytic capacitor is the research direction of existing technical personnel. The electrolytic capacitors in the prior art generally have a load life of 1000-2000 hours at 105°C (or above), and these capacitors have poor durability when used in tunnel (highway) lighting, submarine lighting, stadium lighting, advertising lighting, etc. , It needs to be replaced frequently, but due to the complexity of the site, the replacement is difficult and the cost is high.

[0003] Therefore, the prior art still needs to be...

Claims

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